CN103044925B - Thermal transfer printing silica gel, and preparation method and application thereof - Google Patents
Thermal transfer printing silica gel, and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a thermal transfer printing silica gel which is characterized by comprising base silica gel, crosslinking agent, color paste and silica gel modifying assistant D in a mass ratio of 10:1:1:1, wherein the base silica gel is prepared by mixing 70-85 parts by mass of dimethyl ethenyl silicon oil, 15-30 parts by mass of white carbon black and 0.01-1 part by mass of assistant B; and the crosslinking agent is prepared by mixing 70-80 parts by mass of dimethyl siloxane hybrid ring DMC, 3-10 parts by mass of methyl hydrogen-containing silicon oil and 0.05-0.2 part by mass of assistant C. The invention also discloses a preparation method of the thermal transfer printing silica gel and application of the thermal transfer printing silica gel. The thermal transfer printing silica gel can be transferred to cotton fabric, Lycra, microfibers, nylon, waterproof nylon, nylon meshes, PU (polyurethane) and true leather. The silica gel thermal transfer printing product prepared by the silica gel has the advantages of super fastness to washing, high elasticity, super softness and the like, and is simple to operate.
Description
Technical field
The present invention relates to organosilicon and Thermal-printing Technology field, be specifically related to a kind of hot transfer printing silica gel, preparation method, and the application of this hot transfer printing silica gel.
Background technology
Organosilicon is the high molecular polymer of half inorganic half organic structure, pollute environment toxicological harmless, again in physiological inertia, attachment is solidified in fiber surface, the effect having modification, repair, beautify fiber perception, improve its function is a kind of excellent environmental textile finish.Along with the development of science and technology and the growing demand of people, the research of organosilicon in coating, wire mark emerges in an endless stream, and shows up prominently gradually, substitutes the market segment of ink and rubber cement, have also been obtained increasing concern.
Thermal-printing Technology is applied to fabric heat transfer printing very early and becomes to produce, and along with high-tech develop rapidly, Thermal-printing Technology application is more and more extensive.First traditional Thermal-printing Technology is with the mode of printing such as wire mark, gravure, is printed on by pattern in hot transfer printing or on plastic film, then by heating and pressurizing, is transferred to by picture and text on the article such as fabric, leather.Common hot transfer printing is mainly the hot transfer printing of ink, yet there are no silica gel heat transfer printing report.Such as, publication number is to disclose a kind of hot transfer printing Yellow ink and thermal transfer sheet in the Chinese invention patent of CN1906252, adopt this thermal transfer sheet can obtain heat transfer record thing at low energies, the concentration of described hot tranfer recording thing is high, present distinct yellow, and its tone and excellent in light-resistance, when mixing with cyan, can also present the good green tone of high density.But ink thermally transferred pattern feel is comparatively hard, and without stereoscopic sensation, rebound resilience is poor, and ink printing pollutes comparatively large, can cause great injury to the health of workman.
Summary of the invention
The object of the invention is for above-mentioned deficiency, a kind of hot transfer printing silica gel is provided, and the preparation method of this hot transfer printing silica gel, with the application of this hot transfer printing silica gel, this hot transfer printing silica gel is applied on fabric soft, with fabric one integrated mass, indeformable with the stretching, extension of fabric, splendid stereoeffect, pollution-free fanout free region.
The technical scheme that the present invention is adopted for achieving the above object is:
A kind of hot transfer printing silica gel, it is made up of the component of following mass ratio: basic silica gel: linking agent: color: silica gel modified additive D=10: 1: 1: 1, wherein, described basic silica gel, by the dimethyl ethenyl silicone oil of mass fraction 70 ~ 85 parts, is mixed with the white carbon black of 15 ~ 30 parts and the auxiliary agent B of 0.01 ~ 1 part; Described linking agent is the dimethyl siloxane hybrid ring DMC of 70 ~ 80 parts by mass fraction, is mixed with the Methyl Hydrogen Polysiloxane Fluid of 3 ~ 10 parts and the auxiliary agent C of 0.05 ~ 0.2 part.
Described dimethyl ethenyl silicone oil is the dimethyl siloxane hybrid ring DMC of 200 ~ 1000 parts by mass fraction, is mixed with the vinyl double-seal head of 1 ~ 10 part and the auxiliary agent A of 0.5 ~ 5 part.
Described dimethyl siloxane hybrid ring DMC molecular formula is [(CH
3)
2siO]
n, wherein n=3,4,5,6 or 7.
Described silica gel modified additive D is the silica gel modifier that silica gel and hot melt adhesive are reacted; It is acrylic modified epoxy resin, acrylic modified epoxy resin, epoxy resin modification vinylformic acid, epoxy resin modification methacrylic acid one or more; Described white carbon black is hydrophilic gas-phase silica; Described auxiliary agent B is platinum catalyst; Described Methyl Hydrogen Polysiloxane Fluid is high containing hydrogen silicone oil, and hydrogen content is greater than 1.58%, and molecular formula is Me
2si (Me
2siO)
a(MeHSiO)
bsiMe
2, wherein the span of a is the span of 1 ~ 2, b is 2 ~ 8; Described auxiliary agent C is Zeo-karb.
Described auxiliary agent A is potassium hydroxide or Tetramethylammonium hydroxide.
The preparation method of above-mentioned hot transfer printing silica gel, it comprises the following steps:
Following component is calculated all according to the mass fraction:
(1) 200 ~ 1000 parts of dimethyl siloxane hybrid ring DMC are taken, 1 ~ 10 part of vinyl double-seal head, 0.5 ~ 5 part of auxiliary agent A, taken dimethyl siloxane hybrid ring DMC and vinyl double-seal head are dropped in reactor, stirring is warming up to 80 ~ 90 DEG C, adds auxiliary agent A after insulation 0.5 ~ 1h; Be warming up to 110 ~ 115 DEG C under nitrogen protection, constant temperature 2 ~ 2.5h, then cool to 90 ~ 100 DEG C, constant temperature 0.5 ~ 1.5h, then be warming up to 175 ~ 185 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 70 ~ 85 parts of steps (1), 15 ~ 30 parts of white carbon blacks, 0.01 ~ 1 part of auxiliary agent B, join in kneader, and powerful kneading stirs 4h, obtains basic silica gel;
(3) take 70 ~ 80 parts of dimethyl siloxane hybrid ring DMC, 3 ~ 10 parts of Methyl Hydrogen Polysiloxane Fluids and 0.05 ~ 0.2 part of auxiliary agent C, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and silane-modified auxiliary agent D, and mixed rear wire mark in separate-type paper, by hot melt adhesive wire mark silica gel after surface drying, then under 80 ~ 120 DEG C of conditions, baking 5 ~ 20min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
Described hot melt adhesive described in step (4) has three kinds of models, is respectively coventional type I, PU type II, corium type III.
Described coventional type I is PA hot melt adhesive, and PU type II is PU hot melt adhesive, and corium type III is that PU hot melt adhesive and PA hot-melt adhesive powder are according to mass ratio 10: 1 ~ 10: 5 mixture heat melten gel.
Coventional type I hot melt adhesive is applicable to hot transfer article to be transferred on common cloth, such as cotton, Lycra cloth, super fine cloth, nylon cloth, waterproof nylon cloth, nylon net cloth etc., PU type II is applicable to hot transfer article to be transferred on PU fabric, and corium type III hot melt adhesive is applicable to hot transfer article to be transferred on corium cloth.
The application of above-mentioned hot transfer printing silica gel, it comprises the steps: first cloth to be laid in heat transfer machine platform, is placed on cloth by hot transfer printing silica gel, with heat transfer machine by hot transfer printing silica gel pressing on cloth.
Described pressing step be carry out hot transfer printing under 140 ~ 160 DEG C of conditions, and transfer time is 15 ~ 30s
Thermally transferred pattern strengthens washing test by 10 circulations, and test condition is water temperature 60 DEG C, and each cycling time is 150 minutes.
The technology of the present invention principle: the present invention utilizes the vinyl groups in silica gel and the Si-H in linking agent, carries out hydrosilylation reaction under the effect of catalyzer, forms Si-C key, makes linear siloxane be cross-linked into network structure.The present invention simultaneously also utilizes auxiliary agent D by silica gel modification, makes it have the functional group that can react with hot melt adhesive, makes silica gel and hot melt adhesive directly chemical reaction can occur, do not need interlayer.
The invention has the beneficial effects as follows: (1) is super water-fastness: reinforcement in 60 DEG C/150 minutes is washed, 5 circulations produce without any buckling phenomena that comes off.
(2) superpower stereoscopic sensation: compared with ink, silica gel can print out desired thickness as required.
(3) super-elastic: indeformable with the stretching, extension of fabric.
(4) super soft: with the comfortableness one integrated mass of fabric, feel as snug as a bug in a rug.
(5) easy to operate: to be made up of hot melt adhesive and silica gel two portions, simple to operate, convenient.
Embodiment
Embodiment 1: the hot transfer printing silica gel that the present embodiment provides, it is made up of the component of following mass ratio: basic silica gel: linking agent: color: silica gel modified additive D=10: 1: 1: 1, wherein, described basic silica gel, by the dimethyl ethenyl silicone oil of mass fraction 70 ~ 85 parts, is mixed with the white carbon black of 15 ~ 30 parts and the auxiliary agent B of 0.01 ~ 1 part; Described linking agent is the dimethyl siloxane hybrid ring DMC of 70 ~ 80 parts by mass fraction, is mixed with the Methyl Hydrogen Polysiloxane Fluid of 3 ~ 10 parts and the auxiliary agent C of 0.05 ~ 0.2 part.
Described dimethyl ethenyl silicone oil is the dimethyl siloxane hybrid ring DMC of 200 ~ 1000 parts by mass fraction, is mixed with the vinyl double-seal head of 1 ~ 10 part and the auxiliary agent A of 0.5 ~ 5 part.
Described dimethyl siloxane hybrid ring DMC molecular formula is [(CH
3)
2siO]
n, wherein n=3,4,5,6 or 7.
Described silica gel modified additive D is the silica gel modifier that silica gel and hot melt adhesive are reacted; It is acrylic modified epoxy resin, acrylic modified epoxy resin, epoxy resin modification vinylformic acid, epoxy resin modification methacrylic acid one or more; Described white carbon black is hydrophilic gas-phase silica; Described auxiliary agent B is platinum catalyst; Described Methyl Hydrogen Polysiloxane Fluid is high containing hydrogen silicone oil, and hydrogen content is greater than 1.58%, and molecular formula is Me
2si (Me
2siO)
a(MeHSiO)
bsiMe
2, wherein the span of a is the span of 1 ~ 2, b is 2 ~ 8; Described auxiliary agent C is Zeo-karb.
Described auxiliary agent A is potassium hydroxide or Tetramethylammonium hydroxide.
The preparation method of above-mentioned hot transfer printing silica gel, it comprises the following steps:
Following component is calculated all according to the mass fraction:
(1) 200 ~ 1000 parts of dimethyl siloxane hybrid ring DMC are taken, 1 ~ 10 part of vinyl double-seal head, 0.5 ~ 5 part of auxiliary agent A, taken dimethyl siloxane hybrid ring DMC and vinyl double-seal head are dropped in reactor, stirring is warming up to 80 ~ 90 DEG C, adds auxiliary agent A after insulation 0.5 ~ 1h; Be warming up to 110 ~ 115 DEG C under nitrogen protection, constant temperature 2 ~ 2.5h, then cool to 90 ~ 100 DEG C, constant temperature 0.5 ~ 1.5h, then be warming up to 175 ~ 185 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 70 ~ 85 parts of steps (1), 15 ~ 30 parts of white carbon blacks, 0.01 ~ 1 part of auxiliary agent B, join in kneader, and powerful kneading stirs 4h, obtains basic silica gel;
(3) take 70 ~ 80 parts of dimethyl siloxane hybrid ring DMC, 3 ~ 10 parts of Methyl Hydrogen Polysiloxane Fluids and 0.05 ~ 0.2 part of auxiliary agent C, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and silica gel modified additive D, and mixed rear wire mark in separate-type paper, by hot melt adhesive wire mark silica gel after surface drying, then under 80 ~ 120 DEG C of conditions, baking 5 ~ 20min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
Described hot melt adhesive described in step (4) has three kinds of models, is respectively coventional type I, PU type II, corium type III.
Described coventional type I is PA hot melt adhesive, and PU type II is PU hot melt adhesive, and corium type III is that PU hot melt adhesive and PA hot-melt adhesive powder are according to mass ratio 10: 1 ~ 10: 5 mixture heat melten gel.
Coventional type I hot melt adhesive is applicable to hot transfer article to be transferred on common cloth, such as cotton, Lycra cloth, super fine cloth, nylon cloth, waterproof nylon cloth, nylon net cloth etc., PU type II is applicable to hot transfer article to be transferred on PU fabric, and corium type III hot melt adhesive is applicable to hot transfer article to be transferred on corium cloth.
The application of above-mentioned hot transfer printing silica gel, it comprises the steps: first cloth to be laid in heat transfer machine platform, is placed on cloth by hot transfer printing silica gel, with heat transfer machine by hot transfer printing silica gel pressing on cloth; This pressing step carries out hot transfer printing under 140 ~ 160 DEG C of conditions, and transfer time is 15 ~ 30s.
Embodiment 2: the preparation method of the hot transfer printing silica gel that the present embodiment provides, its step, goods and application are all substantially the same manner as Example 1, and its difference is, it comprises the following steps and component:
(1) 1000 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
3, 3 parts of vinyl double-seal heads, 0.5 part of potassium hydroxide, by taken dimethyl siloxane hybrid ring [(CH
3)
2siO]
3drop in reactor with vinyl double-seal head, stir and be warming up to 80 DEG C, after insulation 1h, add potassium hydroxide; Be warming up to 110 DEG C under nitrogen protection, constant temperature 2.5h, then cool to 100 DEG C, constant temperature 0.5h, then be warming up to 180 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 80 parts of steps (1), 20 parts of white carbon blacks, 0.05 part of platinum catalyst, and join in kneader, powerful kneading stirs 4h, obtains basic silica gel;
(3) 70 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
3, 8 parts of Methyl Hydrogen Polysiloxane Fluid and 0.1 part of Zeo-karb, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and acrylic modified epoxy resin, and mixed rear wire mark in separate-type paper, by hot melt adhesive coventional type I wire mark silica gel after surface drying, then under 80 DEG C of conditions, baking 20min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
The present embodiment also provides the application of hot transfer printing silica gel, and its step is substantially the same manner as Example 1, and its difference is, under 150 DEG C of conditions with heat transfer machine by hot transfer printing silica gel pressing on cotton, and transfer time is 20s.
Embodiment 3: the preparation method of the hot transfer printing silica gel that the present embodiment provides, its step, goods and application are all substantially identical with embodiment 1,2, and its difference is, it comprises the following steps and component:
(1) 800 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
4, 5 parts of vinyl double-seal heads, 0.8 part of potassium hydroxide, by taken dimethyl siloxane hybrid ring [(CH
3)
2siO]
4drop in reactor with vinyl double-seal head, stir and be warming up to 90 DEG C, after insulation 0.5h, add potassium hydroxide; Be warming up to 115 DEG C under nitrogen protection, constant temperature 2h, then cool to 90 DEG C, constant temperature 1.5h, then be warming up to 185 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 75 parts of steps (1), 25 parts of white carbon blacks, 0.5 part of platinum catalyst, and join in kneader, powerful kneading stirs 4h, obtains basic silica gel;
(3) 75 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
4, 5 parts of Methyl Hydrogen Polysiloxane Fluid and 0.08 part of Zeo-karb, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and acrylic modified epoxy resin, and mixed rear wire mark in separate-type paper, by hot melt adhesive coventional type I wire mark silica gel after surface drying, then under 100 DEG C of conditions, baking 15min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
The present embodiment also provides the application of hot transfer printing silica gel, and its step is substantially identical with embodiment 1,2, and its difference is, its pressing step be under 155 DEG C of conditions with heat transfer machine by hot transfer printing silica gel pressing on Lycra cloth, and transfer time is 15s.
Embodiment 4: the preparation method of the hot transfer printing silica gel that the present embodiment provides, its step, goods and application are all substantially identical with embodiment 1,2,3, and its difference is, it comprises the following steps and component:
(1) 500 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
5, 8 parts of vinyl double-seal heads, 3 parts of Tetramethylammonium hydroxide, by taken dimethyl siloxane hybrid ring [(CH
3)
2siO]
5drop in reactor with vinyl double-seal head, stir and be warming up to 85 DEG C, after insulation 0.8h, add Tetramethylammonium hydroxide; Be warming up to 112 DEG C under nitrogen protection, constant temperature 2.2h, then cool to 95 DEG C, constant temperature 1.2h, then be warming up to 175 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 70 parts of steps (1), 15 parts of white carbon blacks, 0.01 part of platinum catalyst, and join in kneader, powerful kneading stirs 4h, obtains basic silica gel;
(3) 78 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
5, 10 parts of Methyl Hydrogen Polysiloxane Fluid and 0.05 part of Zeo-karb, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and epoxy resin modification vinylformic acid, and mixed rear wire mark in separate-type paper, by hot melt adhesive coventional type I wire mark silica gel after surface drying, then under 120 DEG C of conditions, baking 5min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
The present embodiment also provides the application of hot transfer printing silica gel, and its step is substantially identical with embodiment 1,2,3, and its difference is, be under 150 DEG C of conditions with heat transfer machine by hot transfer printing silica gel pressing on super fine cloth, and transfer time is 20s.
Embodiment 5: the preparation method of the hot transfer printing silica gel that the present embodiment provides, its step, goods and application are all substantially identical with embodiment 1,2,3,4, and its difference is, it comprises the following steps and component:
(1) 600 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
6, 1 part of vinyl double-seal head, 5 parts of Tetramethylammonium hydroxide, by taken dimethyl siloxane hybrid ring [(CH
3)
2siO]
6drop in reactor with vinyl double-seal head, stir and be warming up to 80 DEG C, after insulation 0.8h, add Tetramethylammonium hydroxide; Be warming up to 115 DEG C under nitrogen protection, constant temperature 2.5h, then cool to 100 DEG C, constant temperature 1h, then be warming up to 180 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 85 parts of steps (1), 30 parts of white carbon blacks, 1 part of platinum catalyst, and join in kneader, powerful kneading stirs 4h, obtains basic silica gel;
(3) 72 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
6, 3 parts of Methyl Hydrogen Polysiloxane Fluid and 0.1 part of Zeo-karb, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and epoxy resin modification methacrylic acid, and mixed rear wire mark in separate-type paper, by hot melt adhesive coventional type I wire mark silica gel after surface drying, then under 90 DEG C of conditions, baking 10min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
The present embodiment also provides the application of hot transfer printing silica gel, and its step is substantially identical with embodiment 1,2,3,4, and its difference is, under 140 DEG C of conditions with heat transfer machine by hot transfer printing silica gel pressing on nylon cloth, and transfer time is 25s.
Embodiment 6: the preparation method of the hot transfer printing silica gel that the present embodiment provides, its step, goods and application are all substantially identical with embodiment 1,2,3,4,5, and its difference is, it comprises the following steps and component:
(1) 200 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
7, 10 parts of vinyl double-seal heads, 2 parts of Tetramethylammonium hydroxide, by taken dimethyl siloxane hybrid ring [(CH
3)
2siO]
7drop in reactor with vinyl double-seal head, stir and be warming up to 85 DEG C, after insulation 1h, add Tetramethylammonium hydroxide; Be warming up to 110 DEG C under nitrogen protection, constant temperature 2h, then cool to 100 DEG C, constant temperature 1h, then be warming up to 175 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 80 parts of steps (1), 20 parts of white carbon blacks, 0.1 part of platinum catalyst, and join in kneader, powerful kneading stirs 4h, obtains basic silica gel;
(3) 80 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
7, 8 parts of Methyl Hydrogen Polysiloxane Fluid and 0.2 part of Zeo-karb, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and acrylic modified epoxy resin, and mixed rear wire mark in separate-type paper, by hot melt adhesive PU type II wire mark silica gel after surface drying, then under 110 DEG C of conditions, baking 10min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
The present embodiment also provides the application of hot transfer printing silica gel, and its step is substantially identical with embodiment 1,2,3,4,5, and its difference is, under 160 DEG C of conditions with heat transfer machine by hot transfer printing silica gel pressing on PU cloth, and transfer time is 30s.
Embodiment 7: the preparation method of the hot transfer printing silica gel that the present embodiment provides, its step, goods and application are all substantially identical with embodiment 1,2,3,4,5,6, and its difference is, it comprises the following steps and component:
(1) 750 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
4, 5 parts of vinyl double-seal heads, 1 part of potassium hydroxide, by taken dimethyl siloxane hybrid ring [(CH
3)
2siO]
4drop in reactor with vinyl double-seal head, stir and be warming up to 90 DEG C, after insulation 0.5h, add potassium hydroxide; Be warming up to 115 DEG C under nitrogen protection, constant temperature 2h, then cool to 90 DEG C, constant temperature 0.5h, then be warming up to 180 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 80 parts of steps (1), 25 parts of white carbon blacks, 0.06 part of platinum catalyst, and join in kneader, powerful kneading stirs 4h, obtains basic silica gel;
(3) 70 parts of dimethyl siloxane hybrid ring [(CH are taken
3)
2siO]
4, 5 parts of Methyl Hydrogen Polysiloxane Fluid and 0.07 part of Zeo-karb, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10: 1: 1: 1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and epoxy resin modification vinylformic acid, and mixed rear wire mark in separate-type paper, by hot melt adhesive corium type III wire mark silica gel after surface drying, then under 100 DEG C of conditions, baking 20min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
The present embodiment also provides the application of hot transfer printing silica gel, and its step is substantially identical with embodiment 1,2,3,4,5,6, and its difference is, under 145 DEG C of conditions with heat transfer machine by hot transfer printing silica gel pressing on corium cloth, and transfer time is 30s.
But the foregoing is only better possible embodiments of the present invention, and be not used to limit to the scope of the claims of the present invention, therefore the equivalence change that the technology contents that all utilizations specification sheets of the present invention is recorded is done, be all included in protection scope of the present invention.
Claims (8)
1. a hot transfer printing silica gel, it is characterized in that, it is made up of the component of following mass ratio: basic silica gel: linking agent: color: silica gel modified additive D=10:1:1:1, wherein, described basic silica gel, by the dimethyl ethenyl silicone oil of mass fraction 70 ~ 85 parts, is mixed with the white carbon black of 15 ~ 30 parts and the auxiliary agent B of 0.01 ~ 1 part; Described linking agent is the dimethyl siloxane hybrid ring DMC of 70 ~ 80 parts by mass fraction, is mixed with the Methyl Hydrogen Polysiloxane Fluid of 3 ~ 10 parts and the auxiliary agent C of 0.05 ~ 0.2 part; Described silica gel modified additive D is the silica gel modifier that silica gel and hot melt adhesive are reacted, its be acrylic modified epoxy resin, acrylic modified epoxy resin, epoxy resin modification vinylformic acid, epoxy resin modification methacrylic acid one or more; Described auxiliary agent B is platinum catalyst; Described auxiliary agent C is Zeo-karb.
2. hot transfer printing silica gel according to claim 1, it is characterized in that, described dimethyl ethenyl silicone oil, is be the dimethyl siloxane hybrid ring DMC of 200 ~ 1000 parts by mass fraction, is mixed with the vinyl double-seal head of 1 ~ 10 part and the auxiliary agent A of 0.5 ~ 5 part; Described auxiliary agent A is potassium hydroxide or Tetramethylammonium hydroxide.
3. hot transfer printing silica gel according to claim 1 and 2, is characterized in that, described dimethyl siloxane hybrid ring DMC molecular formula is [(CH
3)
2siO]
n, wherein n=3,4,5,6 or 7.
4. hot transfer printing silica gel according to claim 1, is characterized in that, described white carbon black is hydrophilic gas-phase silica; Described Methyl Hydrogen Polysiloxane Fluid is high containing hydrogen silicone oil, and hydrogen content is greater than 1.58%, and molecular formula is Me
3siO (MeHSiO)
nsiMe
3.
5., according to the preparation method of the hot transfer printing silica gel one of Claims 1-4 Suo Shu, it is characterized in that, it comprises the following steps:
Following component is calculated all according to the mass fraction:
(1) 200 ~ 1000 parts of dimethyl siloxane hybrid ring DMC are taken, 1 ~ 10 part of vinyl double-seal head, 0.5 ~ 5 part of auxiliary agent A, taken dimethyl siloxane hybrid ring DMC and vinyl double-seal head are dropped in reactor, stirring is warming up to 80 ~ 90 DEG C, adds auxiliary agent A after insulation 0.5 ~ 1h; Be warming up to 110 ~ 115 DEG C under nitrogen protection, constant temperature 2 ~ 2.5h, then cool to 90 ~ 100 DEG C, constant temperature 0.5 ~ 1.5h, then be warming up to 175 ~ 185 DEG C, constant temperature 0.5h, vacuumize constant temperature 0.5h, finally naturally cool to room temperature, obtain dimethyl ethenyl silicone oil;
(2) take the dimethyl ethenyl silicone oil prepared by 70 ~ 85 parts of steps (1), 15 ~ 30 parts of white carbon blacks, 0.01 ~ 1 part of auxiliary agent B, join in kneader, and powerful kneading stirs 4h, obtains basic silica gel;
(3) take 70 ~ 80 parts of dimethyl siloxane hybrid ring DMC, 3 ~ 10 parts of Methyl Hydrogen Polysiloxane Fluids and 0.05 ~ 0.2 part of auxiliary agent C, and put in reactor, be warming up to 75 DEG C of reaction 8h, after naturally cooling, auxiliary agent filtered, namely obtain linking agent;
(4) be 10:1:1:1 in mass ratio, take basic silica gel prepared by step (2) respectively, linking agent prepared by step (3), color and silica gel modified additive D, and mixed rear wire mark in separate-type paper, by hot melt adhesive wire mark silica gel after surface drying, then under 80 ~ 120 DEG C of conditions, baking 5 ~ 20min, until silica gel curing molding, namely obtains hot transfer printing silica gel.
6. the preparation method of hot transfer printing silica gel according to claim 4, is characterized in that, the described hot melt adhesive described in step (4) is one of following three kinds of models: coventional type I, PU type II, corium type III; Described coventional type I is PA hot melt adhesive, and PU type II is PU hot melt adhesive, and corium type III is that PU hot melt adhesive and PA hot-melt adhesive powder are according to mass ratio 10:1 ~ 10:5 mixture heat melten gel.
7. according to the application of the described hot transfer printing silica gel of one of Claims 1-4, it is characterized in that, it comprises the steps: first cloth to be laid in heat transfer machine platform, is placed on cloth by hot transfer printing silica gel, with heat transfer machine by hot transfer printing silica gel pressing on cloth.
8. the application of hot transfer printing silica gel according to claim 7, is characterized in that, described pressing step, be carry out hot transfer printing under 140 ~ 160 DEG C of conditions, and transfer time is 15 ~ 30s.
Priority Applications (1)
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